Snowplow



E. J. DYSON.

SNOWPLOW.

APPLICATION FILED SEPT. 26, 1919.

Patented June 29, 1920.

3 SHEETS-SHEET I.

W/T/VESSES:

E. J. DYSON.

SNOWPLOW.

APPLICATION FILED SEPT. 26, 1919.

1 $44,794:. Patented June 29, 1920.

3 SHEETS-SHEET W MWA j EDWARD JAMES DYSON, OF COLORADO SPRINGS, COLORADO.

SNOWPLOW.

Specification of Letters Patent. Patented June, 29, 1920.

Application filed September 26, 1919. Serial No. 326,484.

To of! whom 11/; may calico/"11.

Be it known that I. Enwann JAMES DY- soN, a citizen of the Dominion of Canada, residing at 19 E. Boulder street, in the city of Colorado Springs, in the county of El Paso and State of Colorado, have invented certain new and useful Improvements in. Snowplows, of which the following is a specification.

' Among the several objects of my invention may be mentioned the following: lst--to provide a horse drawn snow plow with adjustable side wings adapted to throw the snow farther from the path when desired; 2ndto provide an adjustable shear for cutting the snow and ice from the walk or roadway; Srd-to provide means for throwing the snow in one direction only, for example, toward the street in order to avoid blocking the entrance to a residence; 4thtoprovide an anti-skid shoe to pre vent skidding of the plow due to the sidepressure exerted by throwing the snow to one side; and 5thto provide a convenient platform and seat for the driver.

I attain these objectsby means of the device illustrated in the accompanying drawings in which Figure 1 is a plan view of the snow plow, and Fig. 2 is a side elevation, looking in the direction of arrow A in Fig. 1. Fig. 3 is a rear end view, looking in the direction of arrow B in Fig. 1. Fig. 4 is a fragmental side elevation of the rearend of the snow plow. Fig. 7 is a diagrammatic elevation of part of the snow-plow disclosing the lever mechanism for operating the share 12. Fig. 5, is a detail of part of one of the top rails 8 showing the slot 53 with the rack and Fig. 6, is a detail plan of part of the right side of the frame.

Similar numerals refer to similar parts throughout the several views.

The snow plow is mounted on sled runners 5 which constitute part of the framework of the device. To the forward part 6 of the said runners shafts 7, fragmentally shown, are secured in order that the plow may be drawn by a horse. In the frame, consisting of the said runners 5, the top rails 8. standards 9 and cross beams 10, is secured a mold-board 11 which is placed diagonally in the said frame and is adapted to impart a lateral movement to the snow and throw it out of the way. The share 12 is adapted to cut the SHOW and ice from the sidewalk or road and deliver it to' the said mold-board for removal from the path. The said share has one end 13 turned up to form a lever 14 for its adjustment which is provided for in a toggle-joint 15 operated by a lever 16 which is connected to the said toggle-joint by a connecting rod 17. As shown in Fig. 7, when the lever 16 is forced forward from the position of 22, the connecting rod 17 forces the toggle 15 from the position 23 and forces the share 12 downwardly from the position 25 so that the weight of the front of the plow is thus put upon the share by the toggle pivoted on the frame rails 8. Another means for adjustment designed to regulate the depth of the out of the said share is provided by the bolt 18 and nut 19 secured to the top rail and connected to the said lever 14 by the connecting rod 45. Guides 20 prevent deflection of the bolt 18. The said share 12 is pivotally secured to a bolt or rod 21. hen the lever 16 is moved to the position indicated by the dotted lines 22 the togglejoint is deflected and the lever 14 and share 12 are raised, as indicated by the dotted lines .23. 24 and 25 respectively. The side wings 26 and 27 are operated by the levers28 and 29 in connection with toggle-joints 30 and 31 respectively. In operation, when the lever 28 is thrown forward the toggle 30 is flexed as shown by the dotted lines and the wing is drawn in closer to the body of the sled. When one of the levers 28 or 29, is thrown backward as in Fig. 4 to extend its respective wing, the toggle oint 30, as shown in Figs. 1, and 6, is retarded and lever 29 is brought to rest in the slot 53 engaging one of the notches in the ratchet rack 55, as shown in detail in Fig. 5, and in outline in Fig. 4. I have referred to different parts of the two sides to illustrate the operations. The said wings are shown pivoted to the boards 49, 49, by means of hinges 32. To the lower ends 33 of the said wings, scrapers 34 are secured by means of bolts 35 passing through slots 36, which afford means for adjustment, vertically, of the said scrapers. An auxiliary runner or anti-skid shoe 37 is pivotally connected to one of the runners 5 by a hinge 38 and another similar hinge not shown in the drawings. The said shoe is adapted to be thrown into operative position as shown in Figs. 2 and 4 and as indicated by the dotted lines 39 in Fig. 3, by means of the lever 40 which is connected to the lever in dicated by the dotted lines 41 in Fig. 3, by means of the connecting rod indicated by the dotted lines 42. The lever indicated by said lines 41 is connected to and operates the shoe 37 which is adapted to prevent the snow plow from being deflected from its course by the pressure of the mass of snow being thrown from the path. The space 48, Figs. 2 and 4, between the moldboard 11 and the wing 27, is covered by the boards 49, 49. A floor 44 and a tool box 47 having a hinged lid 46 designed as a seat, are provided for the convenience of the driver. A lamp or lantern may be placed in the said box to keep the drivers lunch and seat warm.

Having described my invention what I claim and desire to secure by Letters Patent is 1. The combination in an adjustable snow-plow of the class described, with a sled-frame member, of a lever-controlled vertically adjustable third runner provided to prevent a laterally sliding movement of the snow-plow, a moldboard member pro vided to throw the snow to one side of the path, a lever-operated adjustable share for cutting the snow from the roadway, leverlocking means for throwing the weight of the front of the plow on said share. side wings pivoted to the sides of said sled frame member at their forward ends and leveroperated means for throwing the rear ends of said wings outwardly from the sides of said frame and means for locking them in the desired position.

2. In an adjustable snow-plow of the class described, the combination of a sled frame having two runners, a non-skidding center board between said runners, provided to be extended below the runners to engage the ground to prevent the lateral sliding of the snow-plow, a vertically-controlled adjustable ice-cutting share in the lower front part of the frame and lever means for raising and lowering its cutting edge and for putting the weight of the front end of the frame on it for cutting hard ice, a moldboard shaped throwing member adapted to convey the snow and ice from above said share to one side of the path, a wing pivoted at its front end to the side of the frame and provided with toggle-joint means for forcing it outwardly from the frame at its rear end.

3. In an adjustable snow-plow of the class described, the combination of a sled frame having two runners, a non-skidding centerboard runner between said two runners, a lever means provided to operate said centerboard runner, a hand-lever operated cutting share in the lower front part of said frame provided to cut snow and ice from the path of the snow-plow, a guide member rigidly connected to the upper part of the frame, a

slid-ably mounted guide rod passing through said guide member and united at its lower end by a connecting rod to said share member, a nut member in threaded connection with the top part of said guide rod and provided to limit by suspension the depression of said share member, a moldboardshaped member located diagonally across the frame behind said share and provided to slide the snow from the path, wings on the sides of the frame secured at their fronts pivotally and hand lever means provided to extend the rear ends of said wings and for locking them in the desired positions to clear snow from the path.

EDWARD JAMES DYSON.

Witnesses JOHN F. MULLANEY, JonN N. RICHARDS, FRANK D. \VARREN. 

